Senior Frontend Engineer :

Stack :

React 19 / Vite / TypeScript / PWA

Role summary :

You build and own the user-facing application: fast, accessible, installable, and reliable, including offline scenarios.

Responsibilities :

- Develop and maintain the web client using React 19, TypeScript, and Vite.

- Implement Progressive Web App features: service workers, caching strategies, offline support, installability, push notifications where relevant.

- Consume GraphQL APIs efficiently (e.g., Apollo Client or urql), with sound state and cache management.

- Build a reusable, accessible (WCAG) component library and maintain design consistency.

- Optimize performance (bundle size, Core Web Vitals, rendering behavior).

- Write unit, component, and end-to-end tests; collaborate with QA on automation.

- Participate in code reviews and mentor less experienced engineers.

- Collaborate with the Solution Architect, backend engineers, and designers on technical approach.

Requirements :

- 5+ years of frontend development, with strong production experience in React and TypeScript.

- Hands-on experience with Vite and modern build tooling.

- Practical PWA experience (service workers, Workbox, manifest, offline strategies).

- Experience with GraphQL clients and client-side state management.

- Strong grasp of HTML/CSS, responsive design, and accessibility.

- Experience with testing tools (Vitest/Jest, React Testing Library, Playwright/Cypress).

- Familiarity with Git workflows and CI pipelines.

Nice to have :

- Experience with React 19 features (Actions, use, Server Components concepts, the React Compiler).

- Data visualization experience.

- Frontend security and performance monitoring experience.